Pinned topicDS4300 firmware upgrade: I'm at 5.33.05 fw level (help!)

We just got an IBM fibrechannel SAN of type DS4300 (at least, we think so; it has the numbers "1722 - 60U" printed in the label in its back).

This hardware is running with firmware version 05.33.05.00. We would like to upgrade the firmware to the latest compatible version for this hardware, but doing such a thing is proving to be quite a difficult task (we are used to dealing with HP SAN kit of the MSA family, but this is our first IBM kit).

Anyway, we downloaded "IBM System Storage Manager 10", version 10.60.G5.16, but it cannot proceed to upgrade the firmware: it says the current firmware version in our DS4300 is to old so it cannot handle it.

Then we downloaded "IBM System Storage Manager 10", version 10.15.G5.09, and this management software can indeed see and manage our DS4300, but the "Controller Firmware Upgrade Tool" (version 10.15.G5.01) included with this software says that it "upgrades the controller firmware for storage subsystems from version 6.14 or higher to version 7.10 or higher". So we cannot proceed this way either, as our fw version is 5.33.05.

So we are lost. We don't know what IBM software and which version of it we need to get to be able to upgrade the firmware in our DS4300.

The reason we want to upgrade its firmware, is to test it with a cluster installation of SQL Server 2008 running on Windows Server 2008 R2 x64.

Could anyone please give us a helping hand, or some pointer in the right direction?

I used "IBM System Storage Manager 9" version 09.60.35.05 and with it I upgraded the firmware to version 06.60.22.00, which is the last firmware available for my DS4300 in IBM's support web page. I also upgraded the NVRAM in the DS4300 with the version included in the ZIP package of firmware 06.60.22.00.

So far, so good - all is working fine. I have created some arrays and logical volumes.
I have one last question. The latest firmware available in the IBM support web page for DS4300, is version 06.60.22.00. However, it seems it exists version 07.15.07.00, here:

I used "IBM System Storage Manager 9" version 09.60.35.05 and with it I upgraded the firmware to version 06.60.22.00, which is the last firmware available for my DS4300 in IBM's support web page. I also upgraded the NVRAM in the DS4300 with the version included in the ZIP package of firmware 06.60.22.00.

So far, so good - all is working fine. I have created some arrays and logical volumes.
I have one last question. The latest firmware available in the IBM support web page for DS4300, is version 06.60.22.00. However, it seems it exists version 07.15.07.00, here:

"Make any hard disk drive and/or drive expansion enclosure ESM firmware
updates as required BEFORE proceeding to upgrade the DS4000 controller
with the firmware and NVSRAM files packaged with this README file.
FAILURE to observe the minimum firmware requirement might cause your
DS4000 storage subsystem to be OUT-OF-SERVICE. Check the IBM System
Storage™ Disk Storage Systems Technical Support web site for the latest
released hard drive firmware if you have not already upgraded drive
firmware to the latest supported version. (See 1.4 Dependencies)"